Lab grown diamonds

Pure
HPHT Technology

We offer only HPHT diamonds grown by pure technology which accelerates the natural process, improves it and makes it absolutely environmental friendly.

Natural diamond crystals formed millions — sometimes billions — years ago as deep as 100-200 km under the earth, where temperature reaches 1100-1300 degrees Celsius and pressure is 50-60 kilobars. Such conditions facilitate the transition of carbon from graphite to another modification — a diamond having a cubic structure densely packed with atoms. They are carried to the earth's surface through volcanic activity that creates 'kimberlite pipes'.

Our technology is based on the latest development of HPHT (High Pressure High Temperature) method — a harmonious symbiosis of the nature creation, science and human technologies.

With the help of special cubic hydraulic press units, the HPHT method recreates natural geological conditions that occur at a depth of 160 km in the Earth's mantle. The conditions are a unique and powerful combination of extreme pressure and very high temperatures. To grow a diamond in a cubic press, the tiny natural or synthetic diamond seeds are carefully placed into the bottom of a growth cell. The layers of additional metal-solvent and carbon, in the form of graphite, are then delicately placed on the top of diamond seeds. The growth cell is then placed into the center of the cubic press and heated to 1,500 degrees C while being subjected to 50-60 thousand bars. At that temperature and pressure the metal in the growth cell is melted and the graphite very carefully transforms through the liquid metal into our favorite form of carbon, a diamond crystal.

As a result of this process the Pure diamonds have the same crystal structure, chemical composition and similarity of optical and mechanical properties with the mined diamonds.

Following the nature process, our technicians additionally use impurities to create fancy color diamonds: boron to get fancy blue, nitrogen to get fancy yellow. Pink diamonds are the result of the diamond crystal lattice slight deformations due to various post growth treatments.